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Horizon presents an investigation into the potential and problems of using hydrogen as an alternative to existing fuels.

In this program, Horizon looks at the effort and money spent on the horse to produce the perfect specimen.

Horizon follows the discovery of a chemical in the brain which has morphine-like properties.

Horizon presents the history and research into the uses of sugar.

In this documentary by Horizon, you are shown a revolution in archaeological dating has shown that metal technology was invented in Europe.

Horizon explores the current state of research into the development of artificial replacements for various parts of the body.

Horizon reports about the attempts to bring about cooperation between the Mediterranean countries to combat pollution of their seas.

In this episode, Horizon looks at Britain's methods and plans for nuclear waste management and disposal of the fuel elements.

Horizon presents a documentary that shows how part of the Amazon river area around the Rio Jari was developed with rice and forestry.

This is a Horizon documentary about Liam Hudson, noted psychologist at Brunel University as he challenges modern psychologists.

Horizon examines the work of Dr. Lennart Nilsson who has filmed the complete arterial system of the human body.

This episode of Horizon looks at the recent scientific research into how humans become male or female.

This Horizon documentary is about the increasing use of robots in industry, and the robot's abilities and weaknesses.

Horizon explores the effect of the Mexican oil boom on the country itself and world energy situation.

Horizon investigates the environmental protection program going on in the state of Oregon in the USA. Oregon is the first state to clean up it's environment.

In this episode, Horizon reports on the need to consider more aerodynamic designs for cars to improve fuel economy.

Horizon presents a report on the research into diabetes to determine its causes, controlling measures, and the prevention of complications.

Horizon takes a trip down the Jonglei Canal which is under construction in Sudan and reports on the changes the new canal will bring to the country, and the rest of the world.

This Horizon documentary describes the complete history and design of motorcycles which have significantly evolved over the past 80 years.

This report by Horizon is about current research into the physical and psychological effects of touch, and the effects of touch deprivation.

بازیگران مهمان: Vernon Joyner

Horizon investigates how the British landscape is changing its appearance with native trees being replaced by imported species.

Horizon examines the development of the relatively new science of x-ray astronomy.

This Horizon episode is all about Uranium; its history, the use of uranium for nuclear energy, the dangers of uranium, and the scarcity of the mineral.

Horizon explores current research into the causes and cure for obesity.

In this episode by Horizon, G. R. Taylor presents his personal view of science based on previous Horizon episode clips from the 1970's.